EXAM 2 - PSYCH Flashcards
Neuron
-Cell Body (contains nucleus)
-Dendrites
-Axon
-Myelin
-Cell membrane
Synapse
Point of communication between neurons
Electrochemical Communication
-Electrical; Resting/Action potential
-Chemical; Synaptic transmission & neurotransmitters
Resting Potential
-Not sending o receiving signals
-Inside of neuron is negatively charged
-Na+ more outside
-K+ more inside
Action Potential
-Electrical signal in axons ‘firing’
-Na+ rushes in
-K+ rushes out
Synaptic Transmutation
-Action potential arrives at end of axon
-Neurotransmitters released into synaptic gap
Neurontransmitter:
Acetylcholine
-movement
-learning
-memory
EX: Alzheimers disease
Neurontransmitter:
Dopamine
-Movement
-Attention
-Learning
EX: Parkinson’s Disease
EX: Schizophrenia (too much dopamine)
Neurontransmitter:
Serotonin
-Mood regulation
-Control of eating and sleeping
EX: Depression
EX: Anorexia Nervosa
Neurontransmitter:
Norepinephrine
-Alertness
-Wakefulness
EX: Depression
Neurontransmitter:
Endorphins
-Pain regulation
EX:Lack of pain disorder
Neurontransmitter:
Glutamate
-Excitatory (increases chances that receiving neuron will fire)
Neurontransmitter:
GABA
-Inhibitory (decreases chances that receiving neuron will fire)
Central Nervous System (CNS)
-Brain
-Spinal Cord
Medulla
(hindbrain)
Breathing
Heart Rate
(life sustaining function)
Cerebullum
(hindbrain)
Learning
Memory
Balance
Posture
Movement
Thalamus
(Forebrain)
“routing station” for information
(sensory info comes in)
Limbic System
(forebrain)
Memory
Emotion
Motivation
Amugdala and Hippocampus
Nucleus Accumbens
Central to reinforcing experiences
EX: Drug addictions
(increases activity)
Pons
(hindbrain)
Sleep
Level of alertness
(level of consciousness)
Midbrain
Movement readiness
vision, audition